Halmar International
Halmar International is a U.S. heavy civil construction contractor, founded in 1962 and backed by Italy's ASTM Group, that delivers large-scale infrastructure projects — including rail, bridges, tunnels, airports, and highways — for government transportation agencies through design-build and P3 contracts.
- Company typePrivate
- Founded1962
- HeadquartersNanuet, United States
- Headcount251–500
- GTM typeB2B
- OfferingServices
What Halmar International does
Halmar International, LLC is a heavy civil construction contractor founded in 1962 and headquartered in Nanuet, New York. The company specializes in the delivery of large, complex public infrastructure projects across five service categories: highways and bridges, rail and mass transit, aviation, underground/tunnel, and civil/environmental works. Since becoming the U.S. construction arm of Italy's ASTM Group in 2017, Halmar has expanded its capabilities into alternative delivery models including Design-Build (DB) and Public-Private Partnerships (P3), and most recently into master development under a design-build-finance-operate-maintain model. Notable technical capabilities include custom-engineered gantry systems for prefabricated bridge segment placement, Self-Propelled Modular Transporters (SPMTs) for accelerated bridge construction, and the first U.S. deployment of box jacking on the LIRR Third Track Expansion. Halmar employs 251-500 staff and is led by CEO Chris Larsen.
Halmar's business model is project-based, generating revenue primarily through competitive bidding for large government infrastructure contracts. Recent contract awards include the $1.972 billion Second Avenue Subway Phase 2 (with FCC Construction as Connect Plus Partners), $1.85 billion Penn Station Access, $1.24 billion JFK Central Terminal Area (with Skanska), $819 million Potomac River Tunnel (with CBNA), and a $381 million Park Avenue Viaduct Replacement. Pricing is determined through formal RFP/RFQ procurement processes and is not publicly disclosed. The company's revenue is further augmented by participation in P3 structures — including its 50/50 Penn Transformation Partners JV with Skanska, selected in 2026 as Master Developer for the $7-8 billion Penn Station Transformation with Amtrak and USDOT, which introduces long-term development equity, financing, and operational revenue streams.
Halmar's customer base is concentrated in U.S. government transportation agencies, including the MTA and Long Island Rail Road, Port Authority of New York and New Jersey (PANYNJ), Amtrak, NJ TRANSIT, DC Water, WMATA, Golden Gate Bridge Highway and Transportation District, and NYC DOT. Distribution occurs exclusively through direct procurement and joint venture partnerships (with firms such as Skanska, FCC Construction, RailWorks Transit, and Schiavone Construction). The company maintains offices in Nanuet, New York City, and San Francisco, and competes on technical innovation, schedule certainty, and bonding capacity, supported by ASTM Group's global financial resources and integrated EPC competencies.
Halmar International firmographics
Firmographics- Name
- Halmar International
- Legal name
- Halmar International, LLC
- Website
- https://halmarinternational.com
- Company type
- Private
- Founded year
- 1962
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Halmar International is a U.S. heavy civil construction contractor, founded in 1962 and backed by Italy's ASTM Group, that delivers large-scale infrastructure projects — including rail, bridges, tunnels, airports, and highways — for government transportation agencies through design-build and P3 contracts.
- Ownership category
- akta.pro rank
Halmar International industry classification
Industry- Product category
- Heavy Civil Infrastructure Construction
- NAICS
- Heavy and Civil Engineering Construction (237), Other Heavy and Civil Engineering Construction (237990), Site Preparation Contractors (23891)
- SIC
- Heavy Construction Other Than Bldg Const - Contractors (1600), General Bldg Contractors - Nonresidential Bldgs (1540), Construction Machinery & Equip (3531)
- akta.pro primary industry
- Industrial Plants & Process Equipment (EPC/Turnkey Projects) (TLACAIAA)
- akta.pro secondary industry
- Construction & Infrastructure Modules (Bridges, Rail, Roads, Tunneling) (TLACAIAD)
Keywords
Where Halmar International is headquartered
LocationHeadquarters
- HQ city
- Nanuet
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Halmar International business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Heavy Civil Construction Contracts: Halmar generates revenue through large infrastructure construction contracts with government agencies. Revenue is project-based, typically from design-build, public-private partnership (P3), and traditional delivery methods. Major recent contracts include Second Avenue Subway Phase 2 ($1.972B), JFK CTA ($1.24B), Penn Station Access ($1.85B), and Potomac River Tunnel ($819M).
- Design-Build-Finance-Operate-Maintain Services: As master developer for Penn Station transformation, Halmar will participate in a design-build-finance-operate-maintain public-private partnership model, generating revenue through development equity, construction services, and potentially long-term operational arrangements.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels7 records
Halmar International product offering
Product offeringCore offering
Halmar International is a heavy civil construction firm delivering large, complex infrastructure projects for government transportation agencies across highways and bridges, rail and mass transit, aviation, underground (tunnels), and civil/environmental categories. The firm specializes in alternative project delivery methods, particularly Design-Build and Public-Private Partnership (P3) arrangements, executing work either as prime contractor or through joint ventures with partners such as Skanska, FCC Construction, and CBNA (Bouygues).
Product overview
Halmar International is a heavy civil construction company that serves as the U.S. construction arm of Italy's ASTM Group. The company offers a unified portfolio of infrastructure construction services organized across five service categories: Highways & Bridges, Rail & Mass Transit, Aviation, Underground, and Civil & Environmental. The company specializes in alternative delivery methods, particularly Design-Build (DB) and Public-Private Partnership (P3) projects. Halmar's service offering centers on large-scale, complex infrastructure projects including major transit hubs (Penn Station), subway expansions (Second Avenue Subway), airport terminals (JFK), rail access projects (Penn Station Access), tunnel systems (Potomac River Tunnel), and viaduct replacements (Park Avenue). Each project is delivered through joint ventures with partners such as Skanska, FCC Construction, and various railroad agencies.
Differentiator
Problem solved
Functional benefit
Products and services
- Heavy Civil Construction Services Core construction services for large, critical, and complex infrastructure projects including highways, bridges, rail systems, airports, tunnels, and civil engineering works. The firm specializes in alternative delivery methods such as Design-Build (DB) and Public-Private Partnerships (P3), serving government transportation agencies as prime contractor or JV partner.
- Highways & Bridges Construction Construction and rehabilitation of highways, bridges, and expressways, including Design-Build projects in congested urban areas with high traffic volumes, using techniques such as custom gantry systems and accelerated bridge construction.
- Rail & Mass Transit Construction Construction and improvement of rail and mass transit facilities, including stations, viaducts, third-track expansions, ADA upgrades, and maintenance of active commuter safety during construction, often under design-build contracts with agencies such as MTA, Amtrak, and NJ TRANSIT.
- Aviation Construction Airside and landside construction operations at major airports, including terminal expansions, runway rehabilitation, roadways, utilities, and ground transportation centers, delivered through design-build contracts with airport authorities.
- Underground & Tunnel Construction Complex transit, water, and energy underground projects including tunnel boring, ventilation facilities, and underground station construction while maintaining client operations, delivered for agencies such as MTA and DC Water.
- Civil & Environmental Construction Civil engineering and environmental construction projects including wetland mitigation, drainage improvements, and work in sensitive locations, often paired with major transit and tunneling programs.
- Penn Station Transformation — Master Development (P3 / DBFOM) Master developer and design-build-finance-operate-maintain services for the $7-8 billion redevelopment of New York Penn Station, the busiest transportation facility in the Western Hemisphere, with revenue participation through development equity, construction services, and long-term operational arrangements.
Quantifiable outcome
- Second Avenue Subway Phase 2 - $1.972 billion contract (largest in MTA history)
- +4 more outcomes
Companies that use Halmar International
Customer profileNamed customers9 records
Segments3 records
Ideal customer profiles2 records
Halmar International technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Halmar International partnerships and signals
Strategic signalPartnerships
15 partnerships are on record, tiered core and flagship.
- HNTB-HOK Joint Venture with PAUcoreDesign team selected for Penn Station transformation, providing architectural, urban design and engineering services including grand new entrance, expanded concourses, and improved track capacity.
- Madison Square Garden Entertainment Corp.coreEntered non-binding MOU with Penn Transformation Partners regarding Penn Station redevelopment. Agreement contemplates potential transfer of the Infosys Theater to the Master Developer while MSG Arena remains operational.
- Skanskaflagship50/50 joint venture partnership operating as Penn Transformation Partners (PTP) for the $7-8 billion Penn Station Transformation project. Halmar and Skanska serve as master developer, with construction delivered through a joint venture between Halmar International and Skanska USA Civil Northeast. Also partnering on JFK CTA ($1.24B) and previously on various infrastructure projects.
- Vornado Realty TrustcorePart of Penn Transformation Partners consortium for Penn Station redevelopment. Vornado plans to build a luxury office tower including recreation of the historic Gimbels Passageway to help fund the transformation.
- NJ TRANSITcoreKey partner in Penn Station transformation project, working alongside Penn Transformation Partners and Amtrak on the redevelopment.
- AECOM-led joint venture with LiRo-HillcoreSelected to provide project management services for Penn Station transformation, supporting program management alongside Amtrak and Penn Transformation Partners.
- FCC ConstructioncoreJoint venture as Connect Plus Partners (Connect+) led by Halmar International with FCC Construction for the $1.972 billion Second Avenue Subway Phase 2 tunneling and structural shell contract. FCC provides global leadership in tunnel construction.
- COWI Consulting Inc.coreLead designer for Connect+ team on Second Avenue Subway Phase 2 project, providing engineering expertise for tunneling and structural design.
- ASTM North AmericacoreSister company partnering with Halmar on Elevated Accessibility Enhancements (EAE) Team for ADA Upgrades at 13 Stations Package 3, which won IJGlobal Transport Deal of the Year award.
- CBNA (Bouygues Construction)coreCBNA-Halmar Clean Rivers Joint Venture for the $819 million Potomac River Tunnel project. CBNA (US-based subsidiary of Bouygues Construction) partners with Halmar for design-build delivery of the 5.5-mile tunnel.
- COWI and HatchcoreEngineering partners for CBNA-Halmar Clean Rivers JV on Potomac River Tunnel project, supporting design services.
- Parsons CorporationcoreLead designer for Skanska-Halmar JV on JFK CTA project, providing architectural and engineering design services for the $1.24B project.
- Schiavone ConstructioncorePotomac Yard Constructors JV with Schiavone for WMATA Potomac Yard Metrorail Station, which won LEED Gold certification (first rail station in North America) and multiple awards including ASCE Project of the Year.
- RailWorks Transit, Inc.coreJoint venture partnership for the $1.85 billion Penn Station Access Design-Build project. Halmar and RailWorks Transit deliver Metro-North service expansion to Penn Station.
- Jacobs Civil Consultants Inc.coreDesign Lead for Penn Station Access project, providing civil engineering design services alongside Halmar-RailWorks JV.
Scale indicators8 records
Recent moves7 records
Expansion highlights5 records
Halmar International competitors and assessment
Company assessmentDirect peers
- Skanska USA: Skanska is Halmar's most frequent JV partner (Penn Transformation Partners, JFK CTA) and a direct competitor on US heavy civil, bridge, and transit mega-projects, with overlapping design-build and P3 capabilities.
- Flatiron Construction (HOCHTIEF): Flatiron is a heavy civil contractor specializing in bridges, highways, and rail transit across North America, directly comparable to Halmar's highways/bridges and rail/mass transit service lines.
- Walsh Construction: Walsh is a major US heavy civil and transit contractor with comparable bridge, highway, and rail work, frequently competing for and executing projects similar in scope to Halmar's.
- Lane Construction (Webuild Group): Lane Construction is part of Webuild (Italian parent) and is a direct heavy civil peer with strong tunneling and P3 capabilities, similar to Halmar's portfolio and ASTM-backed delivery model.
- Dragados USA: Dragados USA is a leading tunnel and heavy civil contractor and direct competitor on large transit and tunneling procurements (including past MTA work), highly comparable to Halmar's tunneling franchise.
- Schiavone Construction: Schiavone is a Halmar JV partner (Potomac Yard Metrorail Station) and a regional direct competitor in NYC-area heavy civil, transit, and tunnel work.
- Granite Construction: Granite is a leading US heavy civil contractor with comparable scope across highways, bridges, rail, and airports, and is a direct competitor for state DOT and transit agency procurements similar to Halmar's book.
- Tutor Perini Corporation: Tutor Perini is a direct peer in heavy civil and mass transit construction, with comparable tunnel, rail, and bridge work, often competing head-to-head with Halmar for large transit procurements.
Broad incumbents
- Fluor Corporation: Fluor is a broad incumbent engineering and construction firm with a heavy civil and infrastructure portfolio overlapping Halmar's rail, highway, and aviation work, competing for large public infrastructure bids.
- Bechtel Corporation: Bechtel is a much larger incumbent with overlapping heavy civil and transit capabilities, often competing for the largest US infrastructure megaprojects as a tier-one prime.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Halmar International social profiles
Digital presenceHalmar International financial estimates
Financial estimateRevenue estimate
Valuation estimate
Halmar International leadership team
Management profileNumber of profiles
Profiles1 record
Halmar International subsidiaries and ownership
Company hierarchySubsidiaries5 records
Halmar International funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Halmar International M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Halmar International
What does Halmar International do?
Halmar International is a heavy civil construction firm delivering large, complex infrastructure projects for government transportation agencies across highways and bridges, rail and mass transit, aviation, underground (tunnels), and civil/environmental categories. The firm specializes in alternative project delivery methods, particularly Design-Build and Public-Private Partnership (P3) arrangements, executing work either as prime contractor or through joint ventures with partners such as Skanska, FCC Construction, and CBNA (Bouygues).
Is Halmar International a public or private company?
Halmar International is a private company. It is classified as corporate owned and is currently operating.
When was Halmar International founded?
Halmar International was founded in 1962. It employs 251 to 500 people.
Where is Halmar International based?
Halmar International is headquartered in Nanuet, United States, in the North America region.
How does Halmar International make money?
Two revenue lines are on record. Heavy Civil Construction Contracts are the primary driver. The others are design-Build-Finance-Operate-Maintain Services.
Who are Halmar International's main competitors?
Direct peers on record are Skanska USA, Flatiron Construction (HOCHTIEF), Walsh Construction, Lane Construction (Webuild Group), Dragados USA, Schiavone Construction, Granite Construction and Tutor Perini Corporation. Broad incumbents are Fluor Corporation and Bechtel Corporation.
Does Halmar International have an API?
No public API is recorded for Halmar International.
What industry is Halmar International in?
Halmar International's product category is Heavy Civil Infrastructure Construction. Its primary akta.pro industry code is TLACAIAA, Industrial Plants & Process Equipment (EPC/Turnkey Projects), with a secondary code of TLACAIAD, Construction & Infrastructure Modules (Bridges, Rail, Roads, Tunneling). Its NAICS code is 237 and its SIC code is 1600.